Barbecue grill brush



FIG. 1 is a top perspective view of a barbecue grill brush showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line circles immediately inside the grill brush pads in FIG. 7 represent the bounds of the claimed design, while all other broken lines are for illustrative purposes only; the broken lines form no part of the claimed design. 

The ornamental design for a barbecue grill brush, as shown and described. 